Uranium-238 (238U or U-238) is the most common isotope of uranium found in nature, with a relative abundance of 99%. Unlike uranium-235, it is non-fissile...
22 KB (2,809 words) - 09:10, 6 June 2024
natural uranium are uranium-238 (which has 146 neutrons and accounts for over 99% of uranium on Earth) and uranium-235 (which has 143 neutrons). Uranium has...
110 KB (12,358 words) - 06:51, 17 September 2024
Uranium (92U) is a naturally occurring radioactive element (radioelement) with no stable isotopes. It has two primordial isotopes, uranium-238 and uranium-235...
34 KB (3,113 words) - 23:19, 4 October 2024
Naturally occurring uranium is composed of three major isotopes: uranium-238 (238U with 99.2732–99.2752% natural abundance), uranium-235 (235U, 0.7198–0...
48 KB (5,598 words) - 08:59, 5 October 2024
Uranium-235 (235U or U-235) is an isotope of uranium making up about 0.72% of natural uranium. Unlike the predominant isotope uranium-238, it is fissile...
13 KB (1,240 words) - 03:48, 18 September 2024
Natural uranium (NU or Unat) is uranium with the same isotopic ratio as found in nature. It contains 0.711% uranium-235, 99.284% uranium-238, and a trace...
4 KB (400 words) - 13:50, 5 September 2023
more-commonly available isotopes of uranium and thorium, such as uranium-238 and thorium-232, as opposed to the rare uranium-235 which is used in conventional...
81 KB (8,309 words) - 00:25, 27 September 2024
Uranium-234 (234U or U-234) is an isotope of uranium. In natural uranium and in uranium ore, 234U occurs as an indirect decay product of uranium-238, but...
6 KB (671 words) - 16:19, 26 June 2024
chain of uranium-238; as such, it can be found naturally in uranium-containing minerals. 226 Ra occurs in the decay chain of uranium-238 (238 U ), which...
4 KB (417 words) - 21:09, 19 July 2024
Protactinium (redirect from Uranium-X)
chain of uranium-238. Protactinium-233 occurs as a result of the decay of thorium-233 as part of the chain of events necessary to produce uranium-233 by...
50 KB (5,825 words) - 10:07, 25 September 2024
those (such as uranium-238) for which fission can be induced only by high-energy neutrons. As a result, fissile materials (such as uranium-235) are a subset...
12 KB (1,753 words) - 14:30, 30 July 2024
deuteron bombardment of uranium-238 in the 1.5-metre (60 in) cyclotron at the University of California, Berkeley. First, neptunium-238 (half-life 2.1 days)...
139 KB (14,950 words) - 03:21, 5 October 2024
Decay chain (redirect from Uranium Series)
The 4n+2 chain of uranium-238 is called the "uranium series" or "radium series". Beginning with naturally occurring uranium-238, this series includes...
46 KB (3,963 words) - 18:30, 1 October 2024
Uranium–thorium dating, also called thorium-230 dating, uranium-series disequilibrium dating or uranium-series dating, is a radiometric dating technique...
10 KB (1,180 words) - 20:32, 12 May 2024
have had a yield in excess of 100 Mt (418 PJ) if it had included the uranium-238 tamper which featured in the design but was omitted in the test to reduce...
62 KB (7,237 words) - 02:04, 1 September 2024
bombarding uranium-238 with deuterons, creating neptunium-238. 238 92U + 2 1H → 238 93Np + 2 n The neptunium isotope then undergoes β− decay to plutonium-238, with...
38 KB (3,992 words) - 17:11, 9 June 2024
significant quantity by the nuclear fuel cycle, and the longer-lived uranium-235, uranium-238, and thorium-232 occur in nature.) Unlike plutonium, minor actinides...
10 KB (1,371 words) - 13:34, 5 September 2024
approximately 3.8 days. It is transient in the decay chain of primordial uranium-238 and is the immediate decay product of radium-226. Radon-222 was first...
9 KB (1,075 words) - 15:54, 1 April 2024
Uranium mining is the process of extraction of uranium ore from the ground. Over 50,000 tons of uranium were produced in 2019. Kazakhstan, Canada, and...
155 KB (17,867 words) - 04:32, 27 September 2024
discovery of the element polonium, 210Po is generated in the decay chain of uranium-238 and radium-226. 210Po is a prominent contaminant in the environment,...
20 KB (2,058 words) - 19:46, 25 September 2024
Gaseous diffusion (category Uranium)
(enrichment factor 1.0043) between the molecules containing uranium-235 (235U) and uranium-238 (238U). By use of a large cascade of many stages, high separations...
18 KB (2,016 words) - 15:24, 20 September 2024
itself produced by prior fission events. Fissionable isotopes such as uranium-238 require additional energy provided by fast neutrons (such as those produced...
73 KB (9,615 words) - 07:30, 2 October 2024
or U-238 may be: German submarine U-238, a German World War II U-boat (submarine) Uranium-238 (U-238 or 238U), the most common isotope of uranium This...
239 bytes (67 words) - 14:51, 22 June 2021
isotope except for the three naturally abundant ones: uranium-235 (704 million years), uranium-238 (4.468 billion years), and thorium-232 (14.05 billion...
14 KB (1,698 words) - 04:30, 16 September 2024
Gas centrifuge (redirect from Uranium centrifuge)
prominent use of gas centrifuges is for the separation of uranium-235 (235U) from uranium-238 (238U). The gas centrifuge was developed to replace the gaseous...
18 KB (2,324 words) - 10:21, 4 July 2024
Uranium–uranium dating is a radiometric dating technique which compares two isotopes of uranium (U) in a sample: uranium-234 (234U) and uranium-238 (238U)...
4 KB (432 words) - 10:12, 30 January 2022
the long-lived heavy nuclides, thorium-232, uranium-238, and uranium-235, spontaneous fission of uranium-238, and nuclear transmutation reactions induced...
4 KB (303 words) - 02:17, 17 November 2023
Actinide (section From actinium to uranium)
exposure of uranium-238 to a large neutron flux resulting from the explosion produced heavy isotopes of uranium, including uranium-253 and uranium-255, and...
130 KB (11,597 words) - 17:06, 27 September 2024
Manhattan Project (section Uranium)
Ames process became available in 1943. Natural uranium consists of 99.3% uranium-238 and 0.7% uranium-235, but as only the latter is fissile it must be...
181 KB (22,072 words) - 18:51, 24 September 2024
absorbed by uranium-238 to produce plutonium-239 and other isotopes. Plutonium-239 can also absorb neutrons and fission along with the uranium-235 in a reactor...
19 KB (2,062 words) - 05:38, 30 July 2024